Create an Acknowledgements section for the README

[thewtex]

Add an Acknowledgements section to the README to acknowledge organizations like the National Library of Medicine, grants, etc. that have funded ITK development over the years.

[jhlegarreta]

These may be useful for this purpose:
https://lhncbc.nlm.nih.gov/project/insight-toolkit
https://itk.org/ITK/project/parti.html
https://www.frontiersin.org/articles/10.3389/fninf.2015.00005/full#h3

This presentation, even if outdated, mentions the institutions that contributed to funding ITK or those which actively participated:
https://itk.org/Wiki/images/6/6a/Insight-Overview.ppt

Specific references to grants are not mentioned though.

The Kitware blog may contain entries with references to grants that helped finance ITK modules and/or applications.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[thewtex]

CC: @wschroed

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[thewtex]

We are on this stale-bot 🌞

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Thank you for your contributions.

[thewtex]

bump